Bug 2322994 (CVE-2024-7883)

Summary: CVE-2024-7883 clang: CMSE secure state may leak from stack to floating-point registers
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedKeywords: Security
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in Arm Cortex-M Security Extensions (CMSE). Secure stack contents can be leaked to Non-secure state via floating-point registers when a Secure to Non-secure function call is made that returns a floating-point value and when this is the first use of floating-point since entering Secure state. This allows an attacker to read a limited quantity of Secure stack contents with an impact on confidentiality. This issue is specific to code generated using LLVM-based compilers.
 Story Points: ---
Clone Of: Environment:
Last Closed: Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2024-10-31 18:01:18 UTC 
When using Arm Cortex-M Security Extensions (CMSE), Secure stack 
contents can be leaked to Non-secure state via floating-point registers 
when a Secure to Non-secure function call is made that returns a 
floating-point value and when this is the first use of floating-point 
since entering Secure state. This allows an attacker to read a limited 
quantity of Secure stack contents with an impact on confidentiality. 
This issue is specific to code generated using LLVM-based compilers.